Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual é a matrícula mínima no Barton College
 ###Tabelas: CREATE TABLE one-day_internationals (one-day_internationals_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Player VARCHAR, Runs INT, Average INT, Career VARCHAR) CREATE TABLE game_summaries (game_summaries_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Visiting team VARCHAR, Home team VARCHAR, Stadium VARCHAR, Regular season / Preseason VARCHAR) CREATE TABLE current_members (current_members_id AUTO_INCREMENT PRIMARY KEY, Institution VARCHAR, Location VARCHAR, Founded INT, Type VARCHAR, Enrollment INT, Joined VARCHAR, Nickname VARCHAR) CREATE TABLE third_generation_fd (third_generation_fd_id AUTO_INCREMENT PRIMARY KEY, Model VARCHAR, Power VARCHAR, Torque VARCHAR, Gearbox VARCHAR, Weight VARCHAR, Seating VARCHAR, Brakes VARCHAR, Wheels VARCHAR, Tyres VARCHAR) CREATE TABLE expansion_draft_selections (expansion_draft_selections_id AUTO_INCREMENT PRIMARY KEY, Pick INT, Player VARCHAR, Nationality VARCHAR, New WNBA Team VARCHAR, Former WNBA Team VARCHAR, College/Country/Team VARCHAR)  
SELECT MIN Enrollment FROM current_members WHERE Institution = Barton College